API RP 574 Fifth Edition 2024 PDF
This recommended practice supplements API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, by providing piping inspectors with information that can improve their skills and increase their basic knowledge of inspection practices. This recommended practice describes inspection practices for piping, tubing, valves (other than control valves), and fittings used in petroleum refineries and chemical plants.
Common piping components, valve types, pipe joining methods, inspection planning processes, inspection intervals and techniques, and types of records are described to aid the inspectors in fulfilling their role in implementing API 570. This publication does not cover the inspection of specialty items, including instrumentation, furnace tubulars, and control valves.
The following documents are referred to in the text in such a way that some or all their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document, including any addenda, applies.
API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems
API Recommended Practice 571, Damage Mechanisms Affecting Fixed Equipment in the Refining Industry
API Recommended Practice 578, Material Verification Program for New and Existing Assets
API 579-1/ASME FFS-1 1, Fitness-For-Service
API Recommended Practice 580, Elements of a Risk-based Inspection Program
ASME B16.20, Metallic Gaskets for Pipe Flanges
ASME B16.25, Buttwelding Ends
ASME B16.34, Valves—Flanged, Threaded, and Welding End
ASME B31.3, Process Piping
ASME Boiler and Pressure Vessel Code (BPVC), Section V: Nondestructive Examination
ASTM G57 2, Standard Test Method for Measurement of Soil Resistivity Using the Wenner Four-Electrode Method
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